Gas-stove.



, PATEN'TBD APR. 21, 1903.4 A. yG. WIATMAN, GAS sTovB.

APPLICATION FILED SEPT., 3, v1901.

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UNTTER STATES 'PATENT OFFICE.

ARTHUR c. WITMAN, or ooLUMRUsOHIo, AssIeNoR To THE GEORGE R. DoNAvIN aCOMPANY, or COLUMBUS, OHIO, A CORPORATION on OHIO.

GAS-STOVE.

SPECIFICATION forming parc 'of Letters Patent No. 726,010,01ateu April2'1', 190e. Application filed September 3, 1901. Serial No. 74,108. (Nomodel.)

To @ZZ whom/'it Wwf/y concern:

Be it known that I, ARTHUR C. WITMAN, a citizen of the United States,residing .at Columbus, in the county of Franklin and State. of Ohio,have invented a certain new and use. ful Improvement in Gas-Stoves, ofwhich the` following is a specification.

My invention relates to the improvement of gas-stoves of that classwhich are designed to employ either natural or artificial gas as fuel.

The objects of my invention are to provide a gas-stove of such improvedconstruction and arrangement of parts as to insure the utilization of acomparatively large per cent. of the-- heat generated by the burner, toprovide anV improved ue construction therefor, and to produce otherimprovements the details of which will be more'fully pointed outhereinafter. These objects I accomplish'in the manner illustrated in theaccompanying drawings, in which- Figure l is a vertical section of myimproved stove on line :n a: of Fig. 2. Fig. 2 is a front elevation, andFig. 3 is a plan view with the top-removed.

Similar numerals refer to similar parts throughout the several views.

1 represents the upright body or casing'of my improved stove, of which*2 represents the base, 3 the top, and 4 the back. In constructing thisstove-body I preferably provide the forward side thereof with anoutwardly-projecting portion 5, the front of which is in theV nature ofa grating or open-work, the openings 6 of which are designedto be filledwith isinglass or other suitable transparent material. In the lowerportionof the projecting front 5 I hinge a transverse door 7.

8 represen ts the burner back or plate, which, rising from the base 2and extending between the side walls of the stove-body, inclines forwardand terminates in the-upper portion of said body. This burner-back isdesigned to be coated or covered with mineral wool, such as is indicatedat 9. As shown at 10,*the upper end of the burner-back is provided witha rearwardly-projecting and upwardly-inclined top fine-plate, the reartermination of which is in close proximity to the inner surface of 5othe back 4. At points below the flue-plate 10 and at suitable intervalsI provide successively-arranged Hue-plates 11, which are parallel withthe plate 10, these plates 11 projecting alternately from the stove-back4 and burner-back 8,`those flue-plates which extend from the stove-bodyback having their forward terminations at points in rear of theburner-back S and those plate or plates which project from saidvburner-back having their terminations on the inner side and at adistance from'thestove-back 4, thus providing a substantially sinuousflue which has its outlet in the lowenportion of the back, as indicatedat 12. In front of and near the base of the burner-back 8, I provide asuitable form of gas-burner 13, to which leads a gas-supply pipe 14.Extending vertically through the stove-body in rear of the burner-backand connecting oppositely-arranged openings in ues or Vair-conductors15, these fines or airconductors passing through openings in thedue-plates 10 and 11, as shown.

It is obvious that in utilizing my invention as a gas heating-stove theproducts of combustion which rise along the front of the burner-back 8will follow the direction of the full-line arrows in Fig. 1, passingthrough the upper converging iue formed between the top flue-plate 10and the stove-top 3, thence vabout the rear portion of said plate 10,and

between the Hue-plates 11 and the burnerback 8 and body-back 4. In thisoperation it will be seen that by passing the heat vabout the due-plates10 and 11 not only will Yfan'increased heatingsurface be provided,

but the heat will be so distributed through the stove-body and its Iiuesas to insure a uniform heating of said stove-body, and conse- .quently auniform radiation therefrom. It

will also be understood that the heat in passing through the stove inthe manner above described must impart a comparatively high temperatureto the air conductors or tubesl, with the result that the continuouscurrents of air which will thus be drawn through-said tubes will bedischarged into the room in a heated condition.

Owing to the fact that my improved stove is provided'with a closedfront, it is obvious that the products'of combustion are prevented fromescaping into the room and that they IOO are compelled to follow thedirection of the arrows before escaping through the outlet 12. It willbe observed that the construction of my improved stove is simple andthat the same may be produced at a reasonable cost of manufacture.

Having now fully described my invention, what I claim, and desire tosecure by Letters Patent, is

1. In a gas-stove, the combination with a casing, of a ireback risingfrom the base of the casing and terminated short of the top thereof, agas-burner within the casing and in front of the ireback, a verticalseries of baffe-plates within the space between the fireback andthe backof the casing, said plates being carried alternately by the iireback andthe back of the casing from the top to the bottom of the series andalternately terminated short of the back of the casing and the firebackfrom the top to the bottom of the series, vertical open-ended hot-airpipes piercing the top and the bottom of the casing and the series ofbaffie-plates, and a smoke-outlet in the lower portion of one of thesides of the casing and in rear of the fireback.

2. In a gas-stove, the combination with a casing having perforations inthe lower portion of the front thereof and a hollow top provided withperforations in vits external walls, of a reback rising from the bottomof the casing and terminated short of the top thereof, said firebackdividing the casing into a front combustion-chamber and arear-smokechamber, a gas-burner within the lower portion of thecombustion-chamber, a vertical series of baffle plates located withinthe smoke-chamber, inclined upwardly and rearwardly and carriedalternately by the fireback and the back of the casing from top tobottom of the series, said plates also being terminated short of theback of the casing and the fireback alternately from the top to thebottom of the series, openended hot-air pipes piercing the bottom of thecasing and the series of balie-plates and connecting with the hollow topof the casing, and a smokeoutlet piercing the back of the casing belowthe lowermost baffle-plate.

ARTHUR C. WITMAN.

In presence of- C. C. SHEPHERD, A. L. PHELPS.

